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Re: [PATCH v1 8/9] plugins: new hwprofile plugin

From: Peter Maydell
Subject: Re: [PATCH v1 8/9] plugins: new hwprofile plugin
Date: Wed, 3 Jun 2020 16:48:33 +0100

On Tue, 2 Jun 2020 at 16:54, Alex Bennée <alex.bennee@linaro.org> wrote:
> This is a plugin intended to help with profiling access to various
> bits of system hardware. It only really makes sense for system
> emulation.
> It takes advantage of the recently exposed helper API that allows us
> to see the device name (memory region name) associated with a device.

This feels like we've let the plugin API get slightly more
access to QEMU's internals than is ideal. Whether an area
of memory happens to be an IO memory region or a memory-backed
one (or whether a device is implemented with one region or
three, or what names we happened to assign them) is kind of
a QEMU internal implementation detail.

-- PMM

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